Smart Ring with Calories, Heart Rate,Step Counter, Heart Rate & Blood Oxygen Monitor, Sleep Tracking, and IP68 Waterproof - No App Subscription, Compatible with Android 5.1+ & iOS 8.0 (Black, 10#)
Health monitoring, body fatigue assessment, can monitor the sleep state, analyze the proportion of time of light sleep and deep sleep, and give advice, can measure blood oxygen, heart rate
Product availability
Available